May Weather in Rethymno, Greece

Last updated: February 6, 2025

In Rethymno's May weather, temperatures create a delightful backdrop for outdoor activities, featuring a maximum of 35°C (94°F) and an inviting average of 19°C (67°F). While the weather is predominantly warm, nighttime brings a cooler minimum of 10°C (51°F), offering a refreshing contrast. The month sees a modest 25 mm (1.0 in) of precipitation over just 3 days, allowing for plenty of sunshine while maintaining an 84% humidity level that adds to the region's lush beauty. Whether you're basking in the warmth or enjoying the occasional shower, May in Rethymno promises a vibrant and pleasing climate.

May Temperature in Rethymno

In May, Rethymno, Greece, begins to embrace the warmth of spring, making it a delightful time to visit. With a minimum temperature of 10°C (51°F) and an average of 19°C (67°F), the days gradually grow milder. As the mercury climbs, visitors can expect maximum temperatures reaching an impressive 35°C (94°F), offering perfect conditions for outdoor exploration and sun-soaked relaxation by the sea. This trend of warming temperatures continues into the summer months, highlighting May as a transition period bursting with vibrant energy and blooming landscapes. Whether you're wandering through ancient streets or enjoying the coastline, Rethymno’s weather in May sets the stage for memorable experiences in this enchanting Greek locale.

May Weather in Rethymno: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Rethymno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec505153586673777773666054
Data source: Temperature data for Rethymno generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Rethymno

May in Rethymno, Greece, marks a notable transition into the warmer months, characterized by a significant drop in precipitation compared to earlier spring months. With only 25 mm (1.0 in) of rain over about 3 days, May is one of the driest months of the year, setting the stage for the June heat. This decrease follows April's 32 mm (1.3 in) of rain, showcasing a consistent trend of diminishing rainfall as the region embraces summer. The relatively light precipitation allows for more sunny days, making May an ideal time for outdoor activities and enjoying the vibrant Mediterranean landscape before the summer heat truly settles in.

May Precipitation Trends in Rethymno

The chart displays monthly precipitation patterns in Rethymno, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec89866732251783254591115
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Rethymno

As spring transitions to summer in Rethymno, Greece, May brings a notable rise in humidity, reaching 84%, the highest level of the year. This uptick reflects the warmer temperatures and increased moisture typical of late spring. Following a steady progression from 71% in January to 78% in April, the environment becomes quite lush and vibrant in May, setting the stage for the balmy summer months ahead. Although June sees a slight decrease to 83%, the overall trend reveals that Rethymno is enveloped in a humid embrace during late spring, which adds to the region's charm and allure for visitors seeking a picturesque Mediterranean experience.

May Average Humidity in Rethymno

This chart illustrates the average monthly humidity levels in Rethymno, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec71%72%74%78%84%83%81%78%74%73%71%71%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Rethymno

As spring transitions into summer, May in Rethymno, Greece, brings a significant rise in UV exposure, marked by an impressive UV Index of 10, categorizing it as very high. This intense level of radiation means that sunburn can occur in just 15 minutes of unprotected exposure. Following a steady climb from January's moderate levels, the UV Index reaches its peak this month, showcasing the urgent need for sun protection as outdoor activities become increasingly popular. The trend continues into June with an even higher UV Index of 11, making it crucial for residents and visitors alike to stay vigilant. For more detailed information on UV Index trends throughout the year, visit Rethymno UV Index.

Maximum UV Index Levels in Rethymno for May

The chart shows the monthly maximum UV Index (UVI) for Rethymno in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109753
Data source: Rethymno May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Rethymno

In Rethymno, Greece, May ushers in an impressive 398 hours of sunshine, marking it as a pivotal month in the region's sunny calendar. As spring unfolds, the days grow longer and brighter, with sunshine hours steadily increasing from 213 in January to 398 in May. This trend continues into the summer months, peaking at 422 hours in July before gradually tapering off in August. The steady ascent in sunlight mirrors the vibrant energy of the locale, making May a perfect time for exploring the stunning beaches and rich history of this charming town. With a delightful balance of warmth and light, May truly epitomizes the blossoming beauty of Rethymno as it transitions into the lively summer season.

Monthly Sunshine Duration in Rethymno: May Highlighted

The May sunshine duration represents the total number of hours Rethymno experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec213h263h331h345h398h408h422h395h352h317h269h262h
Data source: Rethymno May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Rethymno During May

As spring blossoms into May, Rethymno, Greece welcomes a remarkable shift in weather, with the likelihood of sunny days soaring to 80%. This marks a significant increase from the preceding months, where sunshine chances hover around 53% to 60%. The trend continues into the summer, with sunny probabilities peaking at 96% in July and 98% in August, making May a perfect precursor to the sun-drenched days ahead. Visitors can thus anticipate an inviting combination of warmth and brightness, making it an ideal time to explore the picturesque streets of this charming town.

Percentage of Sunny Days in May in Rethymno

The chart illustrates the percentage of sunny days in Rethymno throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Rethymno experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec39%60%53%55%80%92%96%98%88%55%29%40%
Data source: Rethymno May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rethymno in May

In Rethymno, Greece, daylight duration transforms beautifully from winter to summer, creating a vibrant tapestry of light throughout the year. January and February start with a modest 10 hours of daylight, gradually giving way to 11 hours in March. As spring unfolds, the days lengthen noticeably, reaching 13 hours in April and peaking at 14 hours during the sun-drenched months of May, June, and July. This radiant stretch starts to recede slightly in August, offering 13 hours, while September and October gently taper off to 12 and 11 hours, respectively. By November and December, daylight returns to 10 and 9 hours, ushering in the quieter, cozier months of winter. This gradual shift highlights Rethymno's enchanting seasonal rhythm, inviting visitors to bask in the prolonged sunlit days of summer.

Average Daylight Hours in Rethymno for May

The chart illustrates the variation in daylight duration in Rethymno throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 3m10h 53m11h 58m13h 5m14h 1m14h 29m14h 14m13h 25m12h 21m11h 15m10h 17m9h 47m
Data source: Rethymno daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Rethymno

In Rethymno, Greece, the winds of May gently usher in the early summer, with an average speed of 2.1 m/s (5 mph). This is a slight dip from the spring months, where the winds tend to be a touch brisker, particularly in March at 2.8 m/s. As the season transitions into summer, the winds pick back up, peaking in July at 2.9 m/s. Interestingly, the trend reveals that while May experiences the calm before the summer breeze, it also enjoys the soft caress of the Aegean winds, maintaining a pleasant atmosphere perfectly suited for exploring Rethymno’s stunning coastlines. As the year progresses, the winds generally exhibit a gentle oscillation, with fluctuations that provide a consistently enjoyable outdoor experience.

Average May Wind Speed in Rethymno

The chart displays monthly wind speed patterns in Rethymno, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.62.82.62.1 m/s1.92.92.62.52.42.12.7
Data source: Rethymno May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Rethymno Compares to Other Months

The weather in Rethymno changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Rethymno and find detailed weather information for every month.

In comparing the weather between May and January, there is a striking contrast in temperature and precipitation. May boasts a much warmer climate with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 35°C (94°F), accompanied by relatively low precipitation of 25 mm (1.0 in) over just 3 days, resulting in high humidity at 84%. In contrast, January experiences significantly cooler conditions, with temperatures dipping as low as -2°C (29°F) and averaging around 10°C (50°F). Additionally, January sees much higher precipitation levels at 89 mm (3.5 in) spread over 15 days, contributing to a lower humidity level of 71%. For more details about January weather, you can check Rethymno weather in January.

May generally offers much warmer weather compared to February, with average temperatures rising from 11°C (52°F) in February to around 19°C (67°F) in May. While February experiences cooler conditions with a maximum of 19°C (66°F) and frequent precipitation over 10 days amounting to 86 mm (3.4 in), May is considerably drier, receiving only 25 mm (1.0 in) of precipitation over just 3 days. Additionally, May has higher humidity levels at 84%, compared to February's 72%, contributing to a more humid feel. For more details on February conditions, you can check Rethymno weather in February.

May generally offers warmer weather compared to March, with average temperatures reaching around 19°C (67°F) and maximums soaring to 35°C (94°F). In contrast, March has a cooler average of 12°C (53°F), with a maximum temperature of only 22°C (71°F). Additionally, May experiences significantly less precipitation, accumulating only 25 mm (1.0 in) over just 3 days, compared to the wetter March, which sees 67 mm (2.6 in) over 9 days. Humidity levels are also higher in May at 84%, while March maintains a relatively comfortable 74%. For more detailed information, check out Rethymno weather in March.

In comparing the weather of April and May, May clearly showcases warmer temperatures, with a minimum of 10°C (51°F) and an average of 19°C (67°F), while April's temperatures start lower, with a minimum of 6°C (43°F) and an average of 15°C (58°F). The maximum temperatures in May can reach up to 35°C (94°F), significantly higher than April's peak of 26°C (79°F). Interestingly, while May sees slightly less precipitation at 25 mm (1.0 in) over 3 days, April experiences more rainfall at 32 mm (1.3 in) across 5 days. Additionally, May's humidity is higher at 84%, compared to April's 78%. For a detailed look at spring weather patterns, you can refer to Rethymno weather in April.

May and June showcase a clear transition in weather patterns. May typically experiences cooler temperatures with a minimum of 10°C and an average of 19°C, peaking at 35°C. In contrast, June brings slightly higher temperatures, with a minimum of 13°C and an average of 23°C, maxing out at 31°C. Both months see comparable levels of rainfall, with May receiving 25 mm over three days and June getting 17 mm, also on three days. Humidity remains fairly stable, at 84% in May and slightly lower at 83% in June. For more detailed information about the weather in June, check out Rethymno weather in June.

May and July exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 10°C (51°F) to a maximum of 35°C (94°F), averaging around 19°C (67°F). While May experiences moderate precipitation of 25 mm (1.0 in) over 3 days, the humidity is relatively high at 84%. In contrast, July offers warmer temperatures, with a minimum of 18°C (65°F) and an average of 25°C (78°F), peaking at 34°C (94°F). The month is much drier, with only 8 mm (0.3 in) of rainfall over just 1 day, and slightly lower humidity at 81%. For more detailed insights, check out Rethymno weather in July.

In May, the weather begins to transition towards summer with minimum temperatures around 10°C (51°F) and an average of 19°C (67°F), peaking at a maximum of 35°C (94°F). The month sees relatively high humidity at 84% and moderate precipitation of 25 mm (1.0 in) over 3 days. In contrast, August presents warmer conditions with minimum temperatures rising to 20°C (68°F) and an average of 25°C (78°F), while maximum temperatures remain slightly lower at 34°C (93°F). August is much drier, with only 3 mm (0.1 in) of rain recorded on just 1 day, complemented by lower humidity levels of 78%. For more details, check out Rethymno weather in August.

May and September share similar precipitation levels, with both months receiving around 25 mm (1.0 in) of rainfall over three days. However, the weather in May generally features a wider temperature range, from a minimum of 10°C (51°F) to a maximum of 35°C (94°F), resulting in a warm and sometimes hot climate. In contrast, September offers a milder temperature spectrum, with a minimum of 16°C (61°F) and a maximum of 31°C (88°F). Additionally, May experiences higher humidity at 84%, compared to September's more comfortable 74%. For a closer look at the unique characteristics of September weather, visit Rethymno weather in September.

May and October exhibit mild temperatures, with both months averaging around 19°C (67°F). However, May enjoys warmer maximum temperatures, reaching up to 35°C (94°F), while October peaks at a slightly cooler 31°C (89°F). In terms of precipitation, October is wetter, receiving 45 mm (1.8 in) over 8 days compared to May's 25 mm (1.0 in) over just 3 days. Additionally, October's humidity levels are lower at 73%, making it feel less muggy than the more humid May, which sits at 84%. For more specific details on October weather, check out Rethymno weather in October.

May typically showcases warmer weather, with average temperatures reaching 19°C (67°F) and maximums peaking at 35°C (94°F), making it a month of warmth and sunshine. In contrast, November experiences cooler temperatures, averaging 16°C (61°F) and maxing out at 25°C (77°F), signaling the approaching winter. Additionally, May sees relatively low precipitation of 25 mm (1.0 in) over just 3 days, while November is much wetter, with 90 mm (3.6 in) of rainfall spread across 12 days. This results in a higher humidity level in May at 84%, compared to November's 71%. For more detailed insights, you can check Rethymno weather in November.

May and December present contrasting weather patterns. In May, temperatures range from a mild 10°C (51°F) at night to a warm 35°C (95°F) during the day, with an average of 19°C (67°F). The month experiences relatively low precipitation of 25 mm (1.0 in) over just 3 days and high humidity at 84%. In stark contrast, December's temperatures are cooler, averaging just 12°C (54°F) with a maximum of 19°C (66°F) and a minimum of 4°C (40°F). Precipitation in December is significantly higher at 115 mm (4.5 in), spread over 15 days, and humidity drops to a more comfortable 71%. For more detailed information on December weather, you can visit Rethymno weather in December.

Compare Rethymno's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Rethymno

As May unfolds in Rethymno, the weather begins to signal the vibrant embrace of summer, marked by pleasantly warm days and cooler nights. With temperatures peaking at a comforting warmth, this month sees a delightful shift from the cooler spring months, making it ideal for outdoor adventures. The humidity levels hover around a moderate 84%, ensuring a refreshing experience, while the limited rainfall adds to the allure of sunshine-drenched days. Unlike the more erratic weather of earlier months, May is characterized by a stable climate, perfect for exploring the stunning landscapes and rich culture of this beautiful region. For a deeper dive into what to expect year-round, check out Rethymno Climate.